Trivial classes in C++

In this tutorial, we will be discussing a program to understand trivial classes in C++.

When a class/ struct contains explicitly defaulted value inside it, then it is known as Trivial classes. Further trivial classes have their own constructor, assignment operator and destructor.

Example

//using the default constructor
struct Trivial {
   int i;
   private:
   int j;
};
//defining your own constructor
//and then marking it as default
struct Trivial2 {
   int i;
   Trivial2(int a, int b){
      i = a;
   }
   Trivial2() = default;
};

Output

(No output as we are just defining classes here and not creating object instances from them.)